UPDATE 2-Ireland's Horizon to buy U.S. drugmaker Hyperion for $1.1 bln
March 30, 2015 at 08:29 AM EDT
March 30 (Reuters) - Ireland's Horizon Pharma Plc struck a deal to buy U.S. drugmaker Hyperion Therapeutics Inc for about $1.1 billion to add to its line-up of drugs that treat rare diseases.
